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SSC Sample Paper SSC CGL - Sample Paper-26

  • question_answer
    The average of 11 number is 10.8. If the average of the first six is 10.4 and that of the last six is 11.5. Then the middle (6th) number is

    A) 10.3                             

    B) 12.6

    C) 13.5                             

    D) 15.5

    Correct Answer: B

    Solution :

    The required number \[=6\times 10.4+6\times 11.5-11\times 10.8\] \[=62.4+69-118.8\] \[=12.6\]


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